2026 Forest River XLR Boost 366BX
Toy Hauler · Lightweight toy hauler · 43.5 ft · sleeps 4

The 2026 Forest River XLR Boost 366BX is a toy hauler (lightweight toy hauler) built on a XLR Boost frame. At sleeps 4, 43.5 ft long, 13,074 lbs dry, it's positioned for owners who haul motorcycles, ATVs, or bikes.
Floor plan

Photos of the 2026 Forest River XLR Boost 366BX
Full specifications
Dimensions
| Length | 43.5 ft |
|---|---|
| Width | 96 in |
| Slide-Outs | 3 |
Weights
| Dry Weight | 13,074 lbs |
|---|---|
| GVWR | 18,374 lbs |
| Cargo Capacity | 5,300 lbs |
| Hitch / Pin Weight | 3,220 lbs |
Living
| Sleeps | 4 |
|---|---|
| Bed Configuration | queen master |
| Bunkhouse | No |
Power & Electrical
| Generator Prep | Yes |
|---|---|
| Shore Power | 50 A |
Amenities
| Outdoor Kitchen | No |
|---|---|
| Theater Seating | No |
| Residential Fridge | No |
| Fireplace | No |
| Four-Season | No |
| Off-Road Capable | No |
Similar Toy Haulers to consider
Other toy haulers in the catalog with comparable size and price.
Frequently asked questions
How many people does the 2026 Forest River XLR Boost 366BX sleep?
The 2026 Forest River XLR Boost 366BX sleeps 4 and has a queen master bed configuration.
How long is the 2026 Forest River XLR Boost 366BX?
The 2026 Forest River XLR Boost 366BX is 43.5 feet long.
What's the dry weight of the 2026 Forest River XLR Boost 366BX?
The 2026 Forest River XLR Boost 366BX has a dry weight of 13,074 lbs and a GVWR of 18,374 lbs.
Where can I buy the 2026 Forest River XLR Boost 366BX?
Pirka Wakka is a brand-agnostic catalog and doesn't sell RVs. The "Buy on Forest River" link on this page sends you to the manufacturer's product page — they'll route you to an authorized dealer.
Not sure if the 2026 Forest River XLR Boost 366BX is right for you?
Tell Matchmaker your trip, your budget, and your tow vehicle. She'll narrow the catalog to the 2-4 RVs that actually fit — verified specs only, no upsells.
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